Re: [pve-devel] [PATCH container] setup: support Ubuntu 24.04 Noble

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

On 30/04/2024 10:43, Fiona Ebner wrote:
> So this is not new (already present for Ubuntu 23.10) and stems from the
> fact that these images from linuxcontainers.org contain:
> 
>> root@CT113:~# cat /etc/netplan/10-lxc.yaml 
>> network:
>>   version: 2
>>   ethernets:
>>     eth0:
>>       dhcp4: true
>>       dhcp-identifier: mac
> 
> and that generates a configuration that will be ordered before
> ours/preferred by systemd-networkd:
> 
>> root@CT113:~# networkctl status eth0
>> ● 2: eth0                                                                      
>>                      Link File: n/a
>>                   Network File: /run/systemd/network/10-netplan-eth0.network
> 
> Should we still change something in the setup code? I suppose our
> template will not have the netplan configuration file and in a way it'd
> just be a race to the bottom of being ordered first.

Why should there be a incentive for a race to the bottom?

If we have users running into this then yes, we should do something
about it, we do not have a hard requirement of the Ubuntu templates
being build through DAB and especially as we use the LXC template
builder (or well its artefacts) for other non-Debian images, I'd
see why users take it as a source.

If the change in ordering is the correct solution I cannot say without
looking into all deeper – but I'm sure you can evaluate that.
One possibility might be disabling netplan on CT creation, if PVE wants
to control network in another way itself.


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